Massachusetts Avenue NW between Observatory Circle South and 34th Place NW will be closed to all northbound traffic. Southbound traffic will be permitted between 34th Street NW and Waterside Drive NW. All northbound truck traffic will be diverted onto Q Street NW at Sheridan Circle NW. All other northbound traffic will be diverted onto Rock Creek Parkway at Waterside Drive NW. All southbound truck traffic will be diverted east on Garfield Street NW or continue south on Wisconsin Avenue. Massachusetts Avenue NW will be closed to all traffic intermittently.

Residents can compare the impact to a presidential inauguration, said James Murray, the Special Agent in Charge of the United States Secret Service’s Washington Field Office. D.C.

Mayor Muriel Bowser said the city is ready.

Possible Arlington County closures

Arlington County police announced that some roads near the Pentagon City and Rosslyn Metro stations along with the Potomac River bridges could also be closed to accommodate heavy pedestrian traffic exiting the District.

Police warn drivers that the following roads could be closed to traffic anytime between 9 a.m. and 3 p.m. Wednesday and Thursday:

Rosslyn

N. 19th Street at N. Lynn Street

N. 19th Street at Ft. Myer Drive

N. Moore Street at Lee Hwy

Wilson Boulevard at Ft. Myer Drive

Wilson Boulevard at N. Lynn Street

Ft. Myer Drive at N. 17th Street and Fairfax Drive

Pentagon City

Army Navy Drive at S. Eads Street

Army Navy Drive at S. Joyce Street

1200 S. Hayes Street at the mall entrance

S. 15th Street at S. Hayes Street

S. 12th Street at S. Fern Street

Teddy Roosevelt Bridge

I-66 East at Teddy Roosevelt Bridge – all traffic will be diverted onto Route 110 South

Route 50 East at exit to Teddy Roosevelt Bridge – all traffic will be diverted on to the George Washington Parkway South

The closures will depend on the volume of pedestrians walking from D.C. to Arlington after the papal parade and the pope’s address to Congress.